content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2013, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
   * Other names may be trademarks of their respective owners.]
   *
   * --------------------
   * ImageTitleTests.java
   * --------------------
   * (C) Copyright 2004-2013, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 17-Feb-2004 : Version 1 (DG);
   * 21-Mar-2008 : Added tests for arrange method (DG);
   *
   */
  
  package org.jfree.chart.title;
  
  import org.jfree.chart.JFreeChart;
  import org.jfree.chart.ui.Size2D;
  import org.junit.Test;
  
  import java.awt.Graphics2D;
  import java.awt.Image;
  import java.awt.image.BufferedImage;
  import java.io.IOException;
  import java.net.URL;
  import javax.swing.ImageIcon;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotSame;
  import static org.junit.Assert.assertSame;
  
  /**
   * Tests for the {@link ImageTitle} class.
   */
  public class ImageTitleTest  {
  
      private Image testImage;
  
      private Image getTestImage() {
          if (testImage == null) {
              URL imageURL = getClass().getClassLoader().getResource(
                      "org/jfree/chart/gorilla.jpg");
              if (imageURL != null) {
                  ImageIcon temp = new ImageIcon(imageURL);
                  // use ImageIcon because it waits for the image to load...
                  testImage = temp.getImage();
              }
          }
          return testImage;
      }
  
      /**
       * Check that the equals() method distinguishes all fields.
       */
      @Test
      public void testEquals() {
          ImageTitle t1 = new ImageTitle(getTestImage());
          ImageTitle t2 = new ImageTitle(getTestImage());
          assertEquals(t1, t2);
  
          t1.setImage(new BufferedImage(2, 1, BufferedImage.TYPE_INT_RGB));
          assertFalse(t1.equals(t2));
          t2.setImage(new BufferedImage(2, 1, BufferedImage.TYPE_INT_RGB));
          // images considered equal only if they're the SAME object
          // TODO: is there a way to do a better test?
          assertFalse(t1.equals(t2));
      }
  
      /**
       * Two objects that are equal are required to return the same hashCode.
       */
      @Test
      public void testHashcode() {
          ImageTitle t1 = new ImageTitle(getTestImage());
          ImageTitle t2 = new ImageTitle(getTestImage());
          assertEquals(t1, t2);
          int h1 = t1.hashCode();
          int h2 = t2.hashCode();
          assertEquals(h1, h2);
      }
  
      /**
       * Confirm that cloning works.
       */
      @Test
      public void testCloning() throws CloneNotSupportedException {
          ImageTitle t1 = new ImageTitle(getTestImage());
          ImageTitle t2 = (ImageTitle) t1.clone();
          assertNotSame(t1, t2);
          assertSame(t1.getClass(), t2.getClass());
          assertEquals(t1, t2);
      }
  
      /**
       * Serialize an instance, restore it, and check for equality.
       */
      @Test
      public void testSerialization() throws IOException, ClassNotFoundException {
          // TODO: add serialization support for images
      }
  
      private static final double EPSILON = 0.00000001;
  
      /**
       * Check the width and height.
       */
      @Test
      public void testWidthAndHeight() {
          ImageTitle t1 = new ImageTitle(getTestImage());
          assertEquals(100, t1.getWidth(), EPSILON);
          assertEquals(100, t1.getHeight(), EPSILON);
      }
  
      /**
       * Some checks for the arrange method.
       */
      @Test
      public void testArrangeNN() {
          BufferedImage image = new BufferedImage(100, 100,
                  BufferedImage.TYPE_INT_RGB);
          Graphics2D g2 = image.createGraphics();
          ImageTitle t = new ImageTitle(getTestImage());
          Size2D s = t.arrange(g2);
          assertEquals(102.0, s.getWidth(), EPSILON);
          assertEquals(102.0, s.getHeight(), EPSILON);
  
          t.setPadding(1.0, 2.0, 3.0, 4.0);
          s = t.arrange(g2);
          assertEquals(106.0, s.getWidth(), EPSILON);
          assertEquals(104.0, s.getHeight(), EPSILON);
  
          t.setMargin(5.0, 6.0, 7.0, 8.0);
          s = t.arrange(g2);
          assertEquals(120.0, s.getWidth(), EPSILON);
          assertEquals(116.0, s.getHeight(), EPSILON);
      }
  
  }
  